7.13.5 Power Supply Failure

If there is a problem with a power supply, POST lights the general fault indicator and the power supply fault indicator on the front panel. If you have more than one power supply, then you can use the LEDs located on the power supplies themselves to identify the faulty supply. The power supply LEDs indicate any problem with the AC input or DC output. See "7.12.1.3 Power Supply LEDs" for more information about the LEDs.